| 发明名称 |
Method for rapid removal of cores made of {62 Al{hd 2{b O{HD 3 {B from directionally solidified eutectic and superalloy and superalloy materials |
| 摘要 |
Caustic solutions are employed in an autoclave process to rapidly remove cores made of beta -Al2O3 from directionally solidified eutectic alloy and superalloy materials.
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| 申请公布号 |
US4141781(A) |
申请公布日期 |
1979.02.27 |
| 申请号 |
US19770839991 |
申请日期 |
1977.10.06 |
| 申请人 |
GENERAL ELECTRIC COMPANY |
发明人 |
GRESKOVICH, CHARLES D.;BOROM, MARCUS P. |
| 分类号 |
B22D29/00;(IPC1-7):B22D29/00 |
主分类号 |
B22D29/00 |
| 代理机构 |
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